Where Are the Donor Red Blood Cells Usually Acquired from When

question 21

Multiple Choice

Where are the donor red blood cells usually acquired from when performing a major crossmatch?

• A) Pierced donor unit
• B) Pilot tubes
• C) Segments from donor unit
• D) A separate phlebotomy

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Definitions:

Polar Covalent

A type of chemical bond where electrons are unequally shared between atoms, leading to a distribution of charge.

Proton Acceptor

A substance that receives hydrogen ions in a chemical reaction.

Proton Donor

A substance that can release (donate) a proton (H+ ion) in a chemical reaction, typically an acid in a chemical context.

Base

A substance that can accept hydrogen ions (protons) or more generally, donate electron pairs in reactions.